Heating film with fireproof function
By designing a heating film structure containing foam and mica paper, the existing heating film has solved the problems of poor fire resistance and poor buffering performance, and achieved higher safety and longer service life.
Patent Information
- Application Number
- CN202421843243.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing heating film has poor fire resistance and poses a major safety hazard. At the same time, its buffering performance is poor, which is easy to cause damage to external forces during the driving of the car, affecting the quality and service life of the product.
A heating film structure including a heating film main body, a first adhesive layer, a foam, a second adhesive layer and mica paper are designed. The heating film main body is formed by superimposing the lower insulating film, heating core and upper insulating film, and the first and second adhesive layers are superimposed with foam and mica paper, respectively, which has good fire resistance.
The heating film structure significantly enhances fire resistance and buffering performance, improves the safety and quality of the product, extends the service life and meets existing needs.
Smart Images
Figure CN222967100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technology of heating films, in particular to a heating film with a fire prevention function. Background Art
[0002] At present, the global energy and environmental problems are serious, and the development and utilization of new energy have received more and more attention. In particular, new energy electric vehicles have been the most concerned in recent years. Major automobile companies have invested heavily in the development of new energy electric vehicles. The on-vehicle energy system is one of the three core technologies of electric vehicles. It is like the engine of a traditional internal combustion engine, the heart of an electric vehicle, and the only power source of an electric vehicle. It accounts for 1 / 3 of the total cost of an electric vehicle.
[0003] The battery of a new energy electric vehicle decays significantly in a low-temperature environment. To solve this problem, a heating film is usually arranged on the side or bottom of the battery module. The heating film heats the battery to improve its performance, extend its service life, and enhance its quality.
[0004] Currently, the heating film usually has a structure in which two insulating films are laminated on the upper and lower surfaces of a heating core. Although this structure is simple and can basically achieve the heating function of the heating film, its functions are relatively single. Due to the unreasonable structure design, the fire prevention performance of the product is poor, posing a large potential safety hazard. Moreover, the buffer performance of the product is not good. During the driving of the vehicle, the product is easily damaged under the action of external forces, affecting the quality of the product, and the service life of the product is short, which cannot meet the existing requirements. Therefore, it is necessary to study a new technical solution to improve the current heating film. Summary of the Utility Model
[0005] In view of this, in view of the deficiencies of the existing technology, the main purpose of the utility model is to provide a heating film with a fire prevention function, which can effectively solve the problems of the existing heating film, such as relatively single functions, poor fire prevention performance due to unreasonable structure design, large potential safety hazards, poor buffer performance, easy damage under the action of external forces during vehicle driving, affecting the quality of the product, and short service life of the product.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A heating film with fire prevention function, comprising a heating film main body, a first adhesive layer, a foam, a second adhesive layer and a mica paper; the heating film main body comprises a lower insulating film, a heating core and an upper insulating film which are stacked from bottom to top in sequence; the first adhesive layer is stacked on the upper surface of the upper insulating film; the foam is stacked on the upper surface of the first adhesive layer, and the foam has good buffering performance, sound insulation performance and heat preservation performance, and is waterproof and moisture-proof; the second adhesive layer is stacked on the upper surface of the foam; the mica paper is stacked on the upper surface of the second adhesive layer, and the mica paper has good fire prevention performance, heat resistance performance, wear resistance performance and insulation performance.
[0008] As a preferred solution, the lower insulating film is a PI film.
[0009] As a preferred solution, the upper insulating film is a PI film.
[0010] As a preferred solution, a positive wire and a negative wire are arranged on one side of the heating core.
[0011] As a preferred solution, the first adhesive layer is a double-sided adhesive layer and has good adhesive performance.
[0012] As a preferred solution, the second adhesive layer is a double-sided adhesive layer and has good adhesive performance.
[0013] As a preferred solution, the heating film main body is square, correspondingly, the first adhesive layer, the foam, the second adhesive layer and the mica paper are all square.
[0014] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:
[0015] By setting that the heating film main body comprises a lower insulating film, a heating core and an upper insulating film which are stacked from bottom to top in sequence, stacking the first adhesive layer on the upper surface of the upper insulating film, stacking the foam on the upper surface of the first adhesive layer, stacking the second adhesive layer on the upper surface of the foam, and stacking the mica paper on the upper surface of the second adhesive layer, the heating film with this structure can effectively enhance the fire prevention performance of the product, improve the safety performance during use, and can also enhance the buffering performance of the product. When the product is under the action of external force during the driving of the vehicle, it is not easy to be damaged, improve the quality of the product, extend the service life of the product, and meet the existing requirements.
[0016] To more clearly illustrate the structural features and functions of the utility model, the following will combine the drawings and specific embodiments to elaborate on the utility model in detail. Brief Description of the Drawings
[0017] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model;
[0018] Figure 2 is a cross-sectional view of a preferred embodiment of the present utility model;
[0019] Figure 3 is an exploded view of a preferred embodiment of the present utility model.
[0020] Description of the reference numerals in the drawings:
[0021] 10. Heating film main body, 11. Lower insulating film
[0022] 12. Heating core, 121. Positive wire
[0023] 122. Negative wire, 13. Upper insulating film
[0024] 20. First adhesive layer, 30. Foam
[0025] 40. Second adhesive layer, 50. Mica paper. Detailed implementation manners
[0026] Please refer to Figures 1 to 3 as shown, which shows the specific structure of a preferred embodiment of the present utility model, including a heating film main body 10, a first adhesive layer 20, a foam 30, a second adhesive layer 40, and a mica paper 50.
[0027] The heating film main body 10 includes a lower insulating film 11, a heating core 12, and an upper insulating film 13 which are stacked in sequence from bottom to top; in this embodiment, the lower insulating film 11 and the upper insulating film 13 are PI films, and the PI films have excellent insulating properties; one side of the heating core 12 is provided with a positive wire 121 and a negative wire 122, and the positive wire 121 and the negative wire 122 are used for conducting connection with an external circuit; the heating film main body 10 is square.
[0028] The first adhesive layer 20 is stacked on the upper surface of the upper insulating film 13; the foam 30 is stacked on the upper surface of the first adhesive layer 20, and the foam 30 has good cushioning performance, sound insulation performance, and heat preservation performance, and is waterproof and moisture-proof; in this embodiment, the first adhesive layer 20 is a double-sided adhesive layer and has good adhesive performance; the first adhesive layer 20 and the foam 30 are square.
[0029] The second adhesive layer 40 is stacked on the upper surface of the foam 30; the mica paper 50 is stacked on the upper surface of the second adhesive layer 40, and the mica paper 50 has good fireproof performance, heat resistance performance, wear resistance performance, and insulating performance; in this embodiment, the second adhesive layer 40 is a double-sided adhesive layer and has good adhesive performance; the second adhesive layer 40 and the mica paper 50 are square.
[0030] The manufacturing process of this embodiment is described in detail as follows:
[0031] First, prepare the lower insulating film 11, the heating core 12, the upper insulating film 13, the foam 30, the mica paper 50 and two double-sided tapes; then, stack the upper insulating film 13 and the lower insulating film 11 on the upper and lower surfaces of the heating core 12 to form the heating film main body 10; then, stick a double-sided tape on the upper surface of the upper insulating film 13 and tear off the release paper to obtain the first bonding layer 20; then, stack the foam 30 on the first bonding layer 20, and then stick another double-sided tape on the upper surface of the foam 30 and tear off the release paper to obtain the second bonding layer 40; finally, stack the mica paper 50 on the second bonding layer 40.
[0032] During use, place the heating film on both side surfaces or the bottom surface of the battery module, connect the positive wire 121 and the negative wire 122 to an external circuit to conduct electricity, and the heating film heats the battery module, so that the battery module does not work at low temperatures, effectively improving the performance of the battery module and extending its service life.
[0033] The design focus of the present utility model lies in:
[0034] By setting that the heating film main body includes a lower insulating film, a heating core and an upper insulating film stacked in sequence from bottom to top, stacking the first bonding layer on the upper surface of the upper insulating film, stacking the foam on the upper surface of the first bonding layer, stacking the second bonding layer on the upper surface of the foam, and stacking the mica paper on the upper surface of the second bonding layer, the heating film with such a structure can effectively enhance the fireproof performance of the product, improve the safety performance during use, and can also enhance the buffering performance of the product. When the product is subjected to external forces during the driving of the vehicle, it is not easily damaged, improving the quality of the product and extending the service life of the product, meeting the existing requirements.
[0035] As described above, it is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A heating film with fireproof function, characterized in that: It includes a heating film body, a first adhesive layer, foam, a second adhesive layer and mica paper; the heating film body includes a lower insulating film, a heating core and an upper insulating film which are stacked in sequence from bottom to top; the first adhesive layer is stacked on the upper surface of the upper insulating film; the foam is stacked on the upper surface of the first adhesive layer; the second adhesive layer is stacked on the upper surface of the foam; the mica paper is stacked on the upper surface of the second adhesive layer.
2. The heating film with fireproof function according to claim 1, characterized in that: The lower insulating film is a PI film.
3. The heating film with fireproof function according to claim 1, characterized in that: The upper insulating film is a PI film.
4. The heating film with fireproof function according to claim 1, characterized in that: A positive wire and a negative wire are arranged on one side of the heating core.
5. The heating film with fireproof function according to claim 1, characterized in that: The first adhesive layer is a double-sided adhesive layer.
6. The heating film with fireproof function according to claim 1, characterized in that: The second adhesive layer is a double-sided adhesive layer.
7. The fireproof heating film according to claim 1, characterized in that: The heating film body is square, and correspondingly, the first adhesive layer, the foam, the second adhesive layer and the mica paper are all square.